Don’t be too hard（) the child.A inB onC ofD out

Don’t talk（) to your mother like that!A withB intoC out ofD back

【C3】A．inB．onC．ofD．to

____ three days to go before the final exams, shouldn’t you work harder？A: InB: OnC:

The plan fell_____for it proved to be too costly.A．offB．behindC．downD．out

The companys future is contingent_____the outcome of the trial.A．inB．onC．toD．out

________ he works hard I don’t mind when he finishes the experiment.A) As soon asB